Zhao Hanzhang attaches great importance to spring ploughing, and repeatedly advised: "This land has been opened for you, and spring ploughing must not be delayed." ”

Ping Xun should get down, and saw Zhao Hanzhang on the horse and was stunned for a moment, "Is the envoy leaving?" ”

"I'm passing by, stop by to take a look, you guys are busy."

Ping Xun could only watch them ride away with regret, and he also wanted Zhao Hanzhang to enter Yushan Hall to have a look.

However, the coming days are long, Yushan Hall has just been built a few days, and at this time there is no result, when they have done a good job in the fields, the school is also done, and the children have learned something, and then the envoy will come again to see his achievements.

Zhao Hanzhang and Fu Tinghan came out today to test explosives.

The group went into the mountain, a stone mountain, from which most of the stones used to build houses in Luyang City were collected, but now it is difficult to mine, so they changed to a mountain.

The mountain was deserted, and Zhao Hanzhang asked people to surround the mountain and prevent idlers from approaching, so he brought Fu Tinghan over to test.

Qiu Wu came up with two wooden barrels, put them down and saluted, "Girl, Da Langjun, everything has been brought." ”

Fu Tinghan opened the lid of the wooden barrel, and inside was a bamboo knot as thick as a child's arm.

He carefully took it out and motioned to Zhao Hanzhang to look at it, "It's just filled with gunpowder, I haven't tried it, I'll take a look at the effect today, and then adjust the formula." ”

He took a box from the bottom of the barrel and opened it, revealing a roll of thread inside.

Qiu Wu felt that his fingers hurt when he saw this coil of thread, this thread was twisted by him, using paper, not a very large strip of paper, wrapped with a little saltpeter powder, and then rolled up finely, and then brushed with rice milk and dried.

He twisted out such a long thread in this volume, and Qiu Wu didn't understand why he, the head of the guard, would do such a thing.

Fu Tinghan's hand is quite skillful, and he lightly put the thread into the bamboo joint, and then wound the bamboo joints together.

Qiu Wu counted them, and a total of twelve bamboo knots were wrapped.

Fu Tinghan looked at the mountain, and finally chose a large stone to put down the bamboo under the side, and then began to pull the line outward.

Pull out the distance, and he cut the line.

Zhao Hanzhang saw that he was ready, so he ordered: "Let everyone retreat, stay away from this mountain, and squat and watch." ”

Qiu Wu: "Huh? ”

Zhao Hanzhang glanced at him.

Qiu Wu immediately responded: "Yes." ”

He immediately told the soldiers and guards to back off.

Seeing that they had all retreated to safety, Fu Tinghan took out the fire fold, blew it, and squatted down to light the fuse when the fire was blown.

The lead snapped, and then it burned all the way through......

Zhao Hanzhang picked up Fu Tinghan and trotted out, and when he ran far away, he covered his ears and squatted on the ground.

Several of Qiu Wu's guards saw it, hesitated and touched their ears, hesitating between covering or not covering, suddenly there was a bang, everyone's heart jumped violently, Qiu Wu subconsciously pulled out his sword, his heart almost jumped out, and when he looked up, he looked at the stone mountain in the distance with smoke and dust rising to the sky.

"This ......"

The guards and soldiers panicked for a moment, and then they stared at the stone mountain with a loud noise with their eyes wide open.

When the smoke cleared, the rocky mountain, which was difficult to mine, collapsed, and the blasted stones were scattered all over the ground.

Zhao Hanzhang was very excited, and rushed up to see Fu Tinghan with him.

Seeing that the explosion was not small, and it was filled with falling rocks, she nodded with satisfaction, "This power is not small, is the recipe you use good, or is it because of the large amount used?" ”

Fu Tinghan also looked at the stones on the ground, and also felt that the power was too great, "Try again, and try it with only six bamboo knots in a while." ”

Zhao Hanzhang nodded.

They re-selected the blasting site.

Qiu Wu couldn't slow down for a long time, let alone the other guards and soldiers, this ...... Seems to be a bit awesome.

Qiu Wu began to follow behind Zhao Hanzhang and Fu Tinghan, and when he saw that Fu Tinghan was tying the thread again, he couldn't help but lower his voice and asked, "Big ...... Da Lang-kun, did you make this thing? ”

Fu Tinghan tied the thread and handed it to him, "You've already seen how to light it just now, you can try it now." ”

Qiu Wu took it nervously, Fu Tinghan patted him on the shoulder and said, "Don't be afraid, this thing won't explode as long as it doesn't collide violently and see fire." ”

Qiu Wu was even more nervous.

No wonder when they went out this morning, Da Langjun asked them to carefully escort the contents of the bucket, that is to be carefully escorted.

Qiu Wu carefully carried the gunpowder up the mountain, placed it in the position chosen by Fu Tinghan, and then put the line down.

Naturally, the line could not be pulled down the mountain, and the remaining mountain road was rugged and not easy to run.

So Zhao Hanzhang didn't let Fu Tinghan step forward, and went up to light the fuse himself.

Seeing that the lead was burning up quickly, Zhao Hanzhang turned around and jumped down the mountain with Qiu Wu, the two of them were flexible, jumped down the mountain in three or five steps, and then ran out of the distance and jumped into the ravine dug before.

She and Qiu Wu fell, and there was a loud bang on the mountain, Fu Tinghan kept counting the time in his heart, and raised his hand to cover her ears when she fell.

He knew that she had a keen sense of hearing, and that loud noises were uncomfortable for them, let alone her.

Qiu Wu has always paid attention to protection, and when he saw Da Langjun taking their girls into his arms, covering their girls' ears, and frowning, he obediently leaned into the ravine, waiting for the explosion to pass.

This time the explosion was much less powerful, but there were also a lot of rocks that were blown out.

Zhao Hanzhang was very satisfied, "It seems that this recipe is very successful, it is just the first experiment, and there is no need to modify it at all." ”

She asked Fu Tinghan curiously, "Do you usually have research on this?" ”

Seeing Fu Tinghan frowning slightly, he asked, "What, can't you say it?" ”

Fu Tinghan stretched his brows, shook his head and said: "If in the past, this was to be kept secret, it really can't be said, but now it's nothing." ”

He said: "I have participated in military research before, mainly to help them calculate some parameters, and some laboratories have early arsenal materials. Because it was a confidential project, sometimes I couldn't get out for months after I went in, so I was bored, so I read all the materials that could be read in the laboratory. ”

Those things can be regarded as historical materials, and the weapons and equipment have been improved many times, so it is only to understand the role of the hardships and struggles of the ancestors, and it does not hinder the people in the laboratory from borrowing them.

"I have a good memory, so I picked a recipe from it, just a preliminary try, I didn't expect it to be so successful."

Zhao Hanzhang said: "After all, it is a mature formula. ”

Fu Tinghan nodded, this research is very labor-saving, because there are things that should be available in this era, and it doesn't need to be very laborious.

Qiu Wu ran over excitedly, "Girl, Da Langjun, are the remaining six tubes fried?" ”

Fu Tinghan pondered for a moment and said, "This one-tube, two-tube, and three-tube fried just to test their power." ”

Qiu Wu was eager to try, "Girl, this is too dangerous, let the humble position take the lead for the rest." ”

Zhao Hanzhang nodded, waved his hand, and said, "Go ahead, be careful." ”

Qiu Wu responded excitedly.

------Off topic------

See you tomorrow

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